Vulnerability · Published Sep 4, 2026 · Assigned by VulnCheck
CVE-2026-80114PassMark PerformanceTest, BurnInTest, and OSForensics Hard-coded Credentials Authentication Bypass via DirectIo64.sys
High 7.8
In plain English
A high-severity security flaw in BurnInTest from PassMark Software. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official description
PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a hard-coded credentials vulnerability in DirectIo64.sys that allows local attackers to perform arbitrary physical memory writes by extracting an 8-byte key embedded as a hardcoded literal in the distributed binary and computing valid MD5 authentication tags for arbitrary IOCTL write requests. Attackers can additionally bypass a secondary validation gate by using the driver's own bit-clear IOCTL to clear a single bit in the gating instruction's displacement byte, causing all subsequent write requests to skip MAC verification, size checks, and Vendor ID checks entirely.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PassMark Software | PerformanceTest | 0 – before 11.1 build 1012 |
| PassMark Software | BurnInTest | 0 – before 11.1 build 1000 |
| PassMark Software | OSForensics | 0 – before 11.1 build 1016 |
Weakness: CWE-321 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- Researcher Disclosure technical-description, exploit
- PerformanceTest Changelog release-notes, patch
- BurnInTest Changelog release-notes, patch
- OSForensics Changelog release-notes, patch
- Technical Analysis and Decompiled Evidence technical-description
- https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-hard-coded-credentials-authentication-bypass-via-directio64-sys third-party-advisory